Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Purchase of shares of treasury stock (in shares)	166,962	26,932
Dividends declared per common share (in dollars per share)	$ 0.24
Shares of common stock for the exercise of stock options (in shares)		68,284

Number of share options (or share units) exercised during the current period.

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